EulerOS 2.0 SP8 : dnsmasq (EulerOS-SA-2021-1138)

According to the versions of the dnsmasq packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in dnsmasq before version 2.83. When getting a reply from a forwarded query, dnsmasq checks in the forward.c:replyquery if the...

CentOS 8 : squid:4 (CESA-2020:3623)

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:3623 advisory. - squid: HTTP Request Smuggling could result in cache poisoning CVE-2020-15810 - squid: HTTP Request Splitting could result in cache poisoning...

MGASA-2021-0059 Updated dnsmasq packages fix security vulnerability

Multiples vulnerabilities have been discovered in dnsmasq up to version 2.82: - subtle errors in dnsmasq's protections against cache-poisoning attacks CVE-2020-25684, CVE-2020-25685 and CVE-2020-25686 - buffer overflow in dnsmasq's DNSSEC code CVE-2020-25681, CVE-2020-25682, CVE-2020-25683 and...

Updated dnsmasq packages fix security vulnerability

Multiples vulnerabilities have been discovered in dnsmasq up to version 2.82: - subtle errors in dnsmasq's protections against cache-poisoning attacks CVE-2020-25684, CVE-2020-25685 and CVE-2020-25686 - buffer overflow in dnsmasq's DNSSEC code CVE-2020-25681, CVE-2020-25682, CVE-2020-25683 and...

A flaw was found in dnsmasq before version 2.83. When getting a reply from a forwarded query dnsmasq checks in forward.c:reply_query() which is the forwarded query that matches the reply by only using a weak hash of the query name. Due to the weak hash (CRC32 when dnsmasq is compiled without DNSSEC SHA-1 when it is) this flaw allows an off-path attacker to find several different domains all having the same hash substantially reducing the number of attempts they would have to perform to forge a reply and get it accepted by dnsmasq. This is in contrast with RFC5452 which specifies that the query name is one of the attributes of a query that must be used to match a reply. This flaw could be abused to perform a DNS Cache Poisoning attack. If chained with CVE-2020-25684 the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity.

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A flaw was found in dnsmasq before version 2.83. When getting a reply from a forwarded query dnsmasq checks in the forward.c:reply_query() if the reply destination address/port is used by the pending forwarded queries. However it does not use the address/port to retrieve the exact forwarded query substantially reducing the number of attempts an attacker on the network would have to perform to forge a reply and get it accepted by dnsmasq. This issue contrasts with RFC5452 which specifies a query's attributes that all must be used to match a reply. This flaw allows an attacker to perform a DNS Cache Poisoning attack. If chained with CVE-2020-25685 or CVE-2020-25686 the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity.

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Amazon Linux 2 : dnsmasq (ALAS-2021-1587)

The version of dnsmasq installed on the remote host is prior to 2.76-16. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1587 advisory. A flaw was found in dnsmasq. When getting a reply from a forwarded query, dnsmasq checks in the forward.c:replyquery if th...

Medium: dnsmasq

Issue Overview: A flaw was found in dnsmasq. When getting a reply from a forwarded query, dnsmasq checks in the forward.c:replyquery if the reply destination address/port is used by the pending forwarded queries. However, it does not use the address/port to retrieve the exact forwarded query,...

dnsmasq: loose address/port check in reply_query() makes forging replies easier for an off-path attacker

A flaw was found in dnsmasq. When getting a reply from a forwarded query, dnsmasq checks in the forward.c:replyquery if the reply destination address/port is used by the pending forwarded queries. However, it does not use the address/port to retrieve the exact forwarded query, substantially...

dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker

A flaw was found in dnsmasq. When getting a reply from a forwarded query, dnsmasq checks in forward.c:replyquery, which is the forwarded query that matches the reply, by only using a weak hash of the query name. Due to the weak hash CRC32 when dnsmasq is compiled without DNSSEC, SHA-1 when it is...

dnsmasq: loose address/port check in reply_query() makes forging replies easier for an off-path attacker

A flaw was found in dnsmasq. When getting a reply from a forwarded query, dnsmasq checks in the forward.c:replyquery if the reply destination address/port is used by the pending forwarded queries. However, it does not use the address/port to retrieve the exact forwarded query, substantially...

dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker

A flaw was found in dnsmasq. When getting a reply from a forwarded query, dnsmasq checks in forward.c:replyquery, which is the forwarded query that matches the reply, by only using a weak hash of the query name. Due to the weak hash CRC32 when dnsmasq is compiled without DNSSEC, SHA-1 when it is...

openSUSE Security Update : dnsmasq (openSUSE-2021-124)

This update for dnsmasq fixes the following issues : - bsc1177077: Fixed DNSpooq vulnerabilities - CVE-2020-25684, CVE-2020-25685, CVE-2020-25686: Fixed multiple Cache Poisoning attacks. - CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687: Fixed multiple potential Heap-based overflow...

openSUSE Security Update : dnsmasq (openSUSE-2021-129)

This update for dnsmasq fixes the following issues : - bsc1177077: Fixed DNSpooq vulnerabilities - CVE-2020-25684, CVE-2020-25685, CVE-2020-25686: Fixed multiple Cache Poisoning attacks. - CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687: Fixed multiple potential Heap-based overflow...

Debian DLA-2531-1 : python-bottle security update

The package src:python-bottle before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon ;, they can cause a difference in the interpretation of the request between the proxy running with...

GLSA-202101-17 : Dnsmasq: Multiple vulnerabilities

The remote host is affected by the vulnerability described in GLSA-202101-17 Dnsmasq: Multiple vulnerabilities Multiple vulnerabilities have been discovered in Dnsmasq. Please review the references below for details. Impact : An attacker, by sending specially crafted DNS replies, could possibly...

Debian: Security Advisory (DLA-2531-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

[SECURITY] [DLA 2531-1] python-bottle security update

----------------------------------------------------------------------- Debian LTS Advisory DLA-2531-1 [email protected] https://www.debian.org/lts/security/ Utkarsh Gupta January 24, 2021 https://wiki.debian.org/LTS -...

Exploit for Improperly Implemented Security Check for Standard in Thekelleys Dnsmasq

dnspooq DNSpooq PoC - dnsmasq cache poisoning CVE-2020-25686,...

Dnsmasq: Multiple vulnerabilities

Background Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP server. Description Multiple vulnerabilities have been discovered in Dnsmasq. Please review the references below for details. Impact An attacker, by sending specially crafted DNS replies, could possibly execute...